CRESCENT CITY, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(042147) CRESCENT CITY 1 N
From Year=1893 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	219	231	276	322	420	496	580	592	548	468	317	234	4701
40 S	219	450	726	1048	1467	1963	2543	3135	3683	4151	4468	4701	4701
45 M	95	108	135	176	265	346	425	437	398	313	175	103	2975
45 S	95	203	338	514	778	1124	1549	1986	2384	2697	2872	2975	2975
50 M	23	30	41	61	120	197	270	282	249	166	64	26	1528
50 S	23	53	94	154	275	472	741	1023	1272	1438	1502	1528	1528
55 M	2	4	6	12	31	68	120	132	111	55	11	3	556
55 S	2	6	12	24	55	123	243	375	486	542	553	556	556
60 M	0	0	1	2	7	11	24	29	31	11	1	0	117
60 S	0	1	1	4	10	21	45	74	105	116	116	117	117

Corn Growing Degree Days
50 M	75	86	110	137	188	236	288	299	282	228	130	81	2141
50 S	75	161	271	408	596	832	1120	1420	1702	1929	2060	2141	2141

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu